Ser-ad FX 505 Ammonium salt of a polymeric carboxylic acid Condea Servo Dispersing agents >> Surfactants-like >> Sodium polyacrylates / Polyacrylic acids Vinyl Coatings >> Waterborne NUOSPERSE Wetting & Dispersing Agents SER-AD FX 505 Pigment Dispersing Agent for Emulsion Paints GENERAL INFORMATION SER-AD FX 505 is a low foaming polymeric pigment dispersing agent that work effectively for many hydrophillic pigments and extenders, used in aqueous coatings. FX 505 is applicable to practically all types of aqueous coatings based on polymeric binders, e.g. PVAC-, PAC-, PSB-, PSAC dispersions, terpolymers and latices etc. It also shows excellent compatibility with those polymeric binders commonly used in aqueous formulations, e.g. paper coatings, adhesives, carpet backings and plastics etc. SER-AD FX 505 is applied as dispersing agent in many hydrophillic pigments and extenders in aqueous mediums such as titanium dioxides, calcium carbonate, barium sulphate, iron oxides etc. The product is strongly adsorbed onto these pigments and extenders and reduces the viscosity of the milling paste. If strongly hydrophobic pigments are used such as most organic types, it is recommended to use SER-AD FX 505 in combination with a wetting agent, e.g. SER-AD FN 1566 or SER-AD FN 265. SER-AD FX 505 counteracts flocculation, floating, flooding and pigment settling. It does not cause foam formation or depolymerises upon storage. As a result coatings with improved performance and excellent stability are contained. SER-AD FX 505 also avoids the viscosity increase which usually occurs during storage with coatings formulated with less chemically stable dispersing agents such as most polyphosphates and various copolymeric dispersing agents. FEATURE -> CONSEQUENCE Narrow distribution of molecular mass of the polymer -> optimal effectivity -> enhanced pigment dispersion -> less flocculation -> best opacity No foaming -> reduces required amount of defoamer -> no bubbles or craters Insensitive to hydrolysis -> provides longterm stability of the paint DOSAGE SER-AD FX 505 is added prior the dispersion stage. The quantity is very dependent on the composition of the paste and should be determined experimentally. It is advised to determine the “viscosity curve” by measuring the viscosity of pastes with various amounts of the product: use in the paint formulation ± 1.5 times the amount of SER-AD FX 504/FX 505, which gives the lowest viscosity at the viscosity curve deter-mination. In general, a concentration of between 0.1 - 0.6 % of SER-AD FX 505 calculated on the total quantity of pigment and extender will be sufficient. Low foaming polymeric pigment dispersing agent that work effectively for many hydrophillic pigments and extenders, used in aqueous coatings, based on polymeric binders as PVAC, PAC, PSB, PSAC dispersions, terpolymers and latices. Applied as dispersing agent in many hydrophillic pigments and extenders in aqueous mediums such as titanium dioxides, calcium carbonate, barium sulphate, iron oxides. Is strongly adsorbed onto these pigments and extenders and reduces the viscosity of the milling paste. If strongly hydrophobic pigments are used such as most organic types, it is recommended to use it in combination with a wetting agent. Offers narrow distribution of molecular mass of the polymer, provides optimal effectivity, decreases flocculation, flooding, pigment settling, increases opacity. Reduces required amount of defoamer, no bubbles or craters. Insensitive to hydrolysis, provides longterm stability of the paint Added prior the dispersion stage. Recommended usage level: 0.1 - 0.6 % calculated on the total quantity of pigment and extender.